[Backport][Video] Fix Episode NFO parsing error (introduced in #24565).

[78andyp]

Description

Backport of #25198

As reported in the forum https://forum.kodi.tv/showthread.php?tid=377480.

Error introduced in #24565 (I cannot reproduce the problem I was attempting to fix).

Motivation and context

How has this been tested?

What is the effect on users?

Screenshots (if appropriate):

Types of change

• Bug fix (non-breaking change which fixes an issue)
• Clean up (non-breaking change which removes non-working, unmaintained functionality)
• Improvement (non-breaking change which improves existing functionality)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that will cause existing functionality to change)
• Cosmetic change (non-breaking change that doesn't touch code)
• Student submission (PR was done for educational purposes and will be treated as such)
• None of the above (please explain below)

Checklist:

• My code follows the Code Guidelines of this project
• My change requires a change to the documentation, either Doxygen or wiki
• I have updated the documentation accordingly
• I have read the Contributing document
• I have added tests to cover my change
• All new and existing tests passed

[CastagnaIT]

on backport PR's please use title same of original PR otherwise is not understandable on git history, the best if you add also [backport] prefix (but not mandatory) the [Omega] is not useful since its already on the target branch

[ksooo]

I prefer [Omega] because this makes clear a) that it is a backport and b) to which branch. But we have no hard guideline for this.

[CastagnaIT]

@ksooo its fine, anyway my main point was something like [xy] #3838 not so good to have in branch

[KarellenX]

Could someone kick off a Win64 test build for this. Thanks.
@fuzzard